GNU GRUB: Difference between revisions

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FAQ

→ See Bootloader#FAQ as those questions also applies to GRUB.

How do I use GRUB in text mode?

Sometimes you need to access GRUB in text mode (e.g. when using out of band management systems like HP ILO in "textcons" mode).

To use GRUB in text mode there are two settings that need to be configured depending on whether you use EFI or BIOS boot:

boot.loader.grub.gfxmodeEfi= "text";
boot.loader.grub.gfxmodeBios= "text";

Only disabling the GRUB splash screen via boot.loader.grub.splashScreen = null; results in a similar output but that is not the real text only mode.

==

@@ Line 3: / Line 3: @@
 == FAQ ==
-=== How do I remove older generations from the bootloader? ===
+→ See [[Bootloader#FAQ]] as those questions also applies to GRUB.
-First, collect garbages in your system, then rebuild. The scripts will collect leftover files.
-The first command, in the example below, removes everything older than 14 days.
-<syntaxhighlight lang="commands">
- $ sudo nix-collect-garbage --delete-older-than 14d
- $ sudo nixos-rebuild boot
-</syntaxhighlight>
 === How do I use GRUB in text mode? ===
@@ Line 25: / Line 16: @@
 Only disabling the GRUB splash screen via <syntaxhighlight lang="nix" inline>boot.loader.grub.splashScreen = null;</syntaxhighlight> results in a similar output but that is not the real text only mode.
+==